CN110560796A

CN110560796A - Movable variable parameter involute drawing and cutting multipurpose machine

Info

Publication number: CN110560796A
Application number: CN201911011253.8A
Authority: CN
Inventors: 王书营
Original assignee: Nanjing Institute of Industry Technology
Current assignee: Nanjing Institute of Industry Technology
Priority date: 2019-10-23
Filing date: 2019-10-23
Publication date: 2019-12-13

Abstract

The invention discloses a movable variable parameter involute drawing and cutting multipurpose machine, which can quickly construct a base circle, draw a bidirectional involute at any point of the base circle, directly cut the involute into grooves, cut and process parts on raw materials with planes, and draw and cut on any fixed plane. Comprises a bracket, a middle control mechanism, a circle forming device, a radial rotating rod, a driving device, a tangential rack, a cutter, a painting brush, a toothed belt wheel disc and an auxiliary backing plate. The device comprises: the method has the advantages of simple operation, complete functions, high curve drawing accuracy and good reality and intuition of the involute forming process; the structure is compact, the cost is low, and the carrying is convenient; the applicability is strong: can be drawn on various occasions and can be cut or processed under any condition. The method is suitable for teaching, carving, engineering design, machining and the like.

Description

Movable variable parameter involute drawing and cutting multipurpose machine

Technical Field

The invention relates to a teaching instrument, in particular to a movable variable parameter involute drawing and cutting multi-purpose machine.

Background

The involute is an important content in university mathematical derivative application, and is widely applied in practice, such as the involute of a circle is used for machining and manufacturing gears, valves and the like. Involutes are often involved in teaching processes in the mechanical field. Particularly, when teaching the tooth profile of the involute gear, an involute curve needs to be accurately drawn on a blackboard or a wall map, however, the involute curve is often drawn by a teacher in free hands in the actual teaching process, and a simple tool suitable for drawing the involute curve in a classroom is not provided at present. Manually drawing the involute easily wastes classroom time, and often the shape is not very standard, sometimes can influence the teaching effect. Engineering designers draw drawings, machining personnel process parts and the like, and need fast and convenient drawing and cutting tools to improve efficiency and precision. Teachers need scientific teaching aids to assist teaching, engineering and technical staff need convenient and automatic high drawing tools, and production workers need few processing equipment with rapid procedure forming.

In order to solve the above problems, a few devices related to the involute aspect have appeared in the near stage, for example, patent application No. 201720420699.6 discloses "an involute plane plotter", which comprises a straight ruler, a positioning pillar, a vertical arm, a horizontal shaft and the like, wherein a plurality of gears are arranged on each horizontal shaft to form a gear transmission pair, a drawing pen is arranged below a rack, and the pen point of the drawing pen is in circumferential contact with the left end face of a friction wheel. The method can draw a standard involute and visually reflect the motion composition relation during generation of the involute. The technology is important for friction and gear drawing, does not reflect tangential line expansion and synchronous follow-up of circular arcs, can not draw involutes of various base circles rapidly due to fixed radius of the base circles, and can not be used for processing and cutting with insufficient applicability. The document with patent application number 201710379698.6 provides a combined involute and ellipse plotter, which comprises a gear box, a vertical support, an involute plotting device and an ellipse plotting device. Although the curve drawing instrument can draw two curves, the forming process and the moving point track characteristic of an involute cannot be demonstrated, an arbitrary base circle cannot be quickly constructed, the change process of an arc is not reflected, and the curve drawing instrument cannot be used for processing and cutting and has insufficient applicability.

The patent application No. 2011103553116.0 discloses an ultrasonic strengthening device for the tooth surface of an involute cylindrical gear, which comprises an ultrasonic generating device, an L-shaped ultrasonic processing head, a pressure feeding device, a first sliding plate, a second sliding plate, a base disc, a guide ruler and a base. According to the involute generating principle, the ultrasonic strengthening of the whole tooth surface is realized, and a residual stress layer with a certain depth is generated on the surface layer of the gear tooth of the strengthened gear, so that the purposes of improving the stress state of the ground gear and prolonging the service life are achieved. The device is heavy on the surface of a reinforced gear, and can not draw an involute and directly cut a workpiece containing the involute on a plate.

Disclosure of Invention

In order to solve the technical problems, the technical scheme adopted by the invention is as follows:

Portable variable parameter is gradually burst at seams and is drawn and cut multi-purpose machine, including support, well accuse mechanism, construct circle device, radial bull stick, drive arrangement, tangential rack, cutter, painting brush, tooth band rim plate, supplementary backing plate, the lower part of support is arranged in to supplementary backing plate, support upper portion is arranged respectively in to well accuse mechanism and tooth band rim plate, construct circle device 3 and arrange in on the well accuse mechanism, radial bull stick is arranged in on the complex body of well accuse mechanism and mechanism circle device, drive arrangement and painting brush are arranged in respectively on the radial bull stick, the tangential rack is arranged in on the drive arrangement, the cutter is arranged in on the tangential rack.

The technical scheme is further that the winding wheel disc comprises a ninth rectangular plate, a thirteenth circular tube, a thirteenth circular disc, a fourteenth circular tube, a fifteenth circular disc and a toothed belt, wherein a third circular hole is formed in the ninth rectangular plate, the thirteenth circular tube is arranged in the third circular hole, a third notch is formed in the upper end of the thirteenth circular tube, the thirteenth circular tube is sequentially provided with the thirteenth circular disc, the ninth rectangular plate, the fourteenth circular disc, the fourteenth circular tube and the fifteenth circular disc from top to bottom, the fourteenth circular tube is clamped between the fourteenth circular disc and the fifteenth circular disc, a second pressing strip is arranged on the fourteenth circular tube, the toothed belt is provided with the toothed belt and comprises a soft belt, a fourth rack and a second adhesive locking belt, the soft belt is respectively provided with the fourth rack and the second adhesive locking belt, the straight toothed belt is provided with two middle parts on two sides of the soft belt, the second sticky lock belt is provided with four straight teeth on two sides, and the toothed belt is wound on the circular pipe in a tensioned mode to form a straight tooth circular gear with a constant radius.

Compared with the prior art, the invention has the beneficial effects that:

1. The movable variable parameter involute drawing and cutting multipurpose machine is simple to operate, and can finish all drawing, plate cutting and the like only by pushing and rotating the handle or turning on the power switch.

2. the mobile variable parameter involute drawing and cutting multipurpose machine of the invention has complete functions: the method can complete the construction of base circles with different radiuses, can quickly draw forward and reverse involutes of all points on the circumference, and can continuously complete the drawing of tooth profile patterns, the one-time cutting blanking of the primary gear and the like on a plane plate; the curve drawing accuracy is high, and the involute forming process is real and intuitive; the applicability is strong: can be drawn on various occasions and can be cut or processed under any condition. The method is suitable for teaching, carving, engineering design, machining and the like.

3. At present, no such product is available on the market, and the movable variable parameter involute drawing and cutting multipurpose machine is compact in structure, low in cost, safe, reliable and light.

Drawings

Fig. 1 is a schematic structural view of the present invention.

Fig. 2 is a schematic structural view of the stent of the present invention.

Fig. 3 is a schematic structural diagram of the centering mechanism in the present invention.

Fig. 4 is a schematic structural diagram of the circle forming device of the invention.

Fig. 5 is a schematic structural view of the radial rotating rod of the present invention.

Fig. 6 is a schematic view of the structure of the driving device of the present invention.

Fig. 7 is a schematic view of the structure of the tangential rack in the present invention.

Fig. 8 is a schematic view of the structure of the cutter in the present invention.

Fig. 9 is a schematic diagram of a brush according to the present invention.

Fig. 10 is a schematic view of the construction of the wire winding reel of the present invention.

Fig. 11 is a schematic view of the structure of the auxiliary mat according to the present invention.

In the drawings: 1-a bracket, 11-a first rectangular plate, 12-an adjusting support rod, 13-a first round tube, 14-a first screw rod, 15-a first nut, 16-a prismatic table base, 17-a spherical sucker, 18-a second nut, 19-a first circular disc, 110-a first lead, 111-a first groove, 112-a second groove, 113-a first scale, 114-a second scale and 115-a first switch; 2-a centering mechanism, 21-a second circular tube, 22-a first square plate, 23-a square buffer box, 24-a third circular tube, 25-a second circular ring disc, 26-a third circular ring disc, 27-a fourth circular ring disc, 28-a fifth circular ring disc, 29-a first square tube, 210-a second square plate, 211-a first pin, 231-a second square tube, 232-a third square plate, 233-a fourth square plate, 234-a first circular hole, 235-a first spring and 236-a third groove; 3-rounding device, 31-fourth circular tube, 32-third nut, 33-fifth circular tube, 34-sixth circular ring disc, 35-seventh circular ring disc, 36-sixth circular tube, 37-eighth circular ring disc, 38-rubber pad disc, 39-first pressing bar, 310-internal inserted rocking tube, 311-seventh circular tube, 312-cuboid wedge block, 313-first handle, 314-first notch, 315-first rack and 316-first sticky locking belt; 4-radial rotating rod, 41-second rectangular plate, 42-third rectangular plate, 43-fourth rectangular plate, 44-eighth round tube, 45-first circular arc plate, 46-second circular arc plate, 47-fourth nut, 48-ninth circular disc, 49-ninth round tube, 410-metal ring, 411-fourth groove, 412-fifth groove, 413-sixth groove, 414-second circular hole, 415-tenth round tube, 416-power interface, 417-first sliding block and 418-third scale; 5-a driving device, 51-a fifth rectangular plate, 52-a sixth rectangular plate, 53-a seventh rectangular plate, 54-a stepping motor, 55-a first gear, 56-a first round shaft rod, 57-a second gear, 58-a threaded pipe, 59-a second sliding block, 510-a third sliding block, 511-a first baffle sliding groove, 512-a second baffle sliding groove, 513-a ball, 514-a fifth nut, 515-a sixth nut and 516-a second gap; 6-tangential rack, 61-eighth rectangular plate, 62-second rack, 63-third rack, 64-fourth scale, 65-sixth groove, 66-seventh groove, 67-first arc groove, 68-second arc groove, 69-sliding card, 610-second pin, 611-ninth rectangular plate and 612-right angle hanger plate; 7-a cutter, 71-an eleventh round pipe, 72-a tenth round ring disc, 73-a round screw, 74-a seventh nut, 75-a first clamp, 76-a knife handle, 77-an adjusting turntable and 78-a triangular blade; 8-painting brush, 81-twelfth round tube, 82-eleventh circular ring plate, 83-second spring, 84-circular pen holder, 85-twelfth circular ring plate, 86-conical pen point and 87-third pin; 9-toothed belt wheel disc, 91-ninth rectangular plate, 92-thirteenth circular tube, 93-thirteenth circular disc, 94-fourteenth circular disc, 95-fourteenth circular tube, 96-fifteenth circular disc, 97-soft belt, 98-fourth rack, 99-second adhesive locking belt, 910-second pressing strip, 911-third circular hole, 912-third notch and 913-toothed belt; 10-auxiliary backing plate, 101-tenth rectangular plate, 102-second clamp and 103-third clamp.

Detailed Description

The technical solution of the present invention is described in detail below, but the scope of the present invention is not limited to the embodiments.

As shown in fig. 1-11, the mobile variable parameter involute drawing and cutting multi-purpose machine comprises a support 1, a middle control mechanism 2, a circle forming device 3, a radial rotating rod 4, a driving device 5, a tangential rack 6, a cutter 7, a painting brush 8, a toothed belt wheel disc 9 and an auxiliary backing plate 10

The auxiliary backing plate 10 is arranged on the lower portion of the support 1, the central control mechanism 2 and the toothed belt wheel disc 9 are respectively arranged on the upper portion of the support 1, the circle forming device 3 is arranged on the central control mechanism 2, the radial rotating rod 4 is arranged on a combined body of the central control mechanism 2 and the circle forming device 3, the driving device 6 and the painting brush 8 are respectively arranged on the radial rotating rod 4, the tangential rack 5 is arranged on the driving device 6, and the cutter 7 is arranged on the tangential rack 5.

As shown in fig. 1 and 2, the bracket 1 includes a first rectangular plate 11, an adjusting support rod 12, and first circular tubes 13, the first rectangular plate 11 is a straight transparent hard plate, the first circular tube 13 is disposed in the middle of the bottom surface of the first rectangular plate 11, the adjusting support rods 12 are disposed at four corners of the first rectangular plate, the first circular tube 13 is a metal hard tube, a first circular disc 19 is disposed at the inner lower end of the first circular tube 13, the first circular disc 19 is an insulating hard plate, a first conductive wire 110 is disposed on the inner circumference of the first circular disc 19, the first conductive wire 110 is a metal bare wire, the adjusting support rod 12 includes a first screw 14, a frustum base 16, and a spherical suction cup 17, the first screw 14 is sequentially provided with a second nut 18, the spherical suction cup 17, a first nut 15, and a frustum base 16 from top to bottom, the middle portion and the upper right corner of the first rectangular plate 11 are respectively provided with a first groove 111 and a second groove 112, the upper surface of the first rectangular plate 11 is respectively provided with a first scale 113, a second scale 114 and a first switch 115, the first switch 115 is provided with a conducting wire which is respectively connected with the first circular tube 13 and the first conducting wire 110, the first scale 113 is a linear scale for representing the radius, and the second scale 114 is a ray scale for representing the angle.

As shown in fig. 1, 2, and 3, the center control mechanism 2 includes a second circular tube 21, a first square plate 22, a square buffer box 23, and a third circular tube 24, the second circular tube 21 is a hard straight circular tube with smooth inside and outside, the second circular tube 21 is provided with a fifth circular disc 28, a first pin 211, a first square plate 22, a second circular disc 25, a third circular tube 24, a third circular disc 26, and a fourth circular disc 27 from top to bottom, the inner circumferences of the fifth circular disc 28, the second circular disc 25, the third circular disc 21, the third circular disc 26, and the fourth circular disc 27 are all fixed on the surface of the second circular tube 21, the third circular disc 24 can freely rotate between the second circular disc 25 and the third circular disc 26, the first square plate 22 is fixed on the second circular tube 21, and the fifth circular disc 28 is a disc handle. The side of first square plate 22 is equipped with first square pipe 29, first square pipe 29 bottom surface is equipped with the square board 210 of second, be equipped with the quad slit on the square board 210 of second, the square board 210 of second is fixed at first square pipe 29 through the quad slit. The side of first square pipe 29 is equipped with square buffer box 23, square buffer box 23 includes second side pipe 231, third side board 232, fourth side board 233, first spring 235, the lower extreme of second side pipe 231 is equipped with third side board 232, third side board 232 fixes and becomes the lower bottom surface of square buffer box 23 on second side pipe 231, the middle part of third side board 232 is equipped with first round hole 234, first round hole 234 is equipped with fixed first spring 235, the upper end of second side pipe 231 is equipped with fourth side board 233, fourth side board 233 fixes and becomes the top surface of square buffer box 23 on second side pipe 231, be equipped with third groove 236 on the fourth side board 233, third groove 236 is the quad slit. The square buffer box 23 is sleeved on the first square pipe 29 through the third groove 236, the second square plate 210 is arranged inside the second square pipe 231, the side length is larger than that of the third groove 236, the second round pipe 21 freely passes through the first round hole 234, the first spring 235 is sleeved outside the second round pipe 21, and the upper end of the first spring is fixed below the first square plate 22.

the middle control mechanism 2 is formed by inserting the square buffer box 23 into the first groove 111 of the bracket 1 and fixing the square buffer box, and the fifth circular disc 28 and the first pin 211 are arranged on the first rectangular plate 11.

As shown in fig. 1, 3, and 4, the circle forming device 3 includes a fourth circular tube 31, a third nut 32, a fifth circular tube 33, a sixth circular ring disc 34, and an inserted rocking tube 310, where the fourth circular tube 31 is a rigid straight circular tube, the upper end of the fourth circular tube 31 is provided with a first notch 314, the first notch 314 is a through hole, the inserted rocking tube 310 is provided in an upper tube opening of the fourth circular tube 31, the inserted rocking tube 310 includes a seventh circular tube 311, a rectangular wedge 312, and a first handle 313, one end of the seventh circular tube 311 is provided with a rectangular wedge 312, the rectangular wedge 312 is symmetrically fixed on the outer tube wall, the circumferential surface of the seventh circular tube 311 is provided with the first handle 313, the first handle 313 is a right-angle rocking handle, the inserted rocking tube 310 inserts the seventh circular tube 311 into the fourth circular tube 31, and the rectangular wedge 312 is inserted into the first notch 314. The bottom surface of the fourth round pipe 31 is provided with a rubber pad 38. The upper end of the circumferential surface of the fourth circular tube 31 is provided with a thread, the thread is provided with a third nut 32, the fourth circular tube 31 is sequentially provided with a fifth circular tube 33, a sixth circular ring disc 34, a seventh circular ring disc 35, a sixth circular tube 36 and an eighth circular ring disc 37 from the third nut 32 to a rubber cushion disc 38, the inner circumferences of the fifth circular tube 33, the sixth circular ring disc 34, the seventh circular ring disc 35 and the eighth circular ring disc 37 are all fixed on the fourth circular tube 31, the circumferential surface of the fourth circular tube 31 is sleeved with the sixth circular tube 36, the sixth circular tube 35 and the eighth circular ring disc 37 can freely rotate, the circumferential surface of the fifth circular tube 33 is sequentially provided with a first adhesive locking belt 316 and a first rack 315 from top to bottom, the first rack 315 is arranged in the middle of the fifth circular tube 33, the first adhesive locking belt 316 is respectively arranged on two sides of the first rack 315, and the surface of the first rack 315 is provided with a first pressing bar 39.

The circle forming device 3 is to dismount the third nut 32 and the inner inserting rocking tube 310, insert the upper end of the fourth circular tube 31 into the second circular tube 21 of the central control mechanism 2, screw the third nut 32 and insert the inner inserting rocking tube 310, the third nut 32 is outside the fifth circular disc 28, and the outer diameters of the third nut 32 and the fifth circular tube 33 are both larger than that of the second circular tube 21.

As shown in fig. 1, 4 and 5, the radial rotating rod 4 comprises a second rectangular plate 41, a third rectangular plate 42, a fourth rectangular plate 43, an eighth circular tube 44, a first circular arc plate 45 and a second circular arc plate 46, the second rectangular plate 41 is a hard straight plate strip, the left end of the second rectangular plate 41 is provided with the first circular arc plate 45, the surface of the second rectangular plate 41 is sequentially provided with a fourth groove 411, a power interface 416 and a sixth groove 413 from left to right, the right end of the sixth groove 413 is provided with the power interface 416, an eighth circular tube 44 is arranged in the sixth groove 413, the eighth circular tube 44 is an insulating hard tube, the lower end of the eighth circular tube 44 is provided with a fixed baffle and a thread, the thread cover is provided with a fourth nut 47, the fourth nut 47 above the second rectangular plate 41 and a fixed baffle below form a fixture, the upper portion of the eighth circular tube 44 is sequentially provided with a ninth circular disc 48, a ninth circular disc from bottom to top, The device comprises a tenth circular tube 415 and a ninth circular tube 49, wherein the ninth circular disc 48 and the tenth circular tube 415 are fixed on the eighth circular tube 44, the ninth circular tube 49 is sleeved on the eighth circular tube 44 and can freely rotate, the ninth circular tube 49 is an insulating hard tube, a metal ring 410 is arranged outside the ninth circular tube 49, the tenth circular tube 415 is a metal tube, and the metal ring 410 and the tenth circular tube 415 are respectively connected with a power interface 416 through wires. The right flank of second rectangular plate 41 is equipped with vertically fourth rectangular plate 43, be equipped with second round hole 414 in the middle of the fourth rectangular plate 43, the lower bottom surface of fourth rectangular plate 43 is equipped with third rectangular plate 42, third rectangular plate 42 is the same with second rectangular plate 41, third rectangular plate 42 surface is equipped with fifth slot 412 and third scale 418 respectively, be equipped with first slider 417 in the fifth slot 412, have the pin lock on the first slider 417, third scale 418 sets up in third rectangular plate 42 left rear side, the left end of third rectangular plate 42 is equipped with second circular arc board 46.

The radial rotating rod 4 fixes the first circular arc plate 45 on the third circular tube 24 of the central control mechanism 2, fixes the second circular arc plate 46 on the sixth circular tube 36 of the circle constructing device 3, arranges the ninth circular tube 49 on the first circular disc 19 of the bracket 1, and contacts the tenth circular tube 415 with the first wire 110.

As shown in fig. 1, 5 and 6, the driving device 5 includes a fifth rectangular plate 51, a sixth rectangular plate 52, a seventh rectangular plate 53, a stepping motor 54, a first gear 55, a first circular shaft 56 and a second gear 57, the fifth rectangular plate 51 and the sixth rectangular plate 52 are identical hard straight plates, a fixed second slider 59 is disposed on the surface of the fifth rectangular plate 51, the second slider 59 is a cuboid hard plate, grooves are disposed on the front and rear sides of the second slider 59, a fixed first baffle sliding slot 511, a first circular shaft 56 and the stepping motor 54 are sequentially disposed on the lower surface of the fifth rectangular plate 51 from left to right, the first baffle sliding slot 511 is a right-angled groove formed by three rectangular plates, the slot opening of the first baffle sliding slot 511 is fixed at the left end downwards, a ball 513 is disposed on the middle bottom surface of the first baffle sliding slot 511, the second gear 57 which can freely rotate is sleeved on the circumferential surface of the first circular shaft 56, a first gear 55 is arranged on a rotating shaft of the stepping motor 54, and the first gear 55 and a second gear 57 are meshed with each other. A vertical seventh rectangular plate 53 is arranged on the right side surface of the fifth rectangular plate 51, a sixth rectangular plate 52 parallel to the fifth rectangular plate 51 is arranged on the bottom surface of the seventh rectangular plate 53, a second baffle sliding groove 512 is arranged at the left end of the upper surface of the sixth rectangular plate 52, the second baffle sliding groove 512 is identical to the first baffle sliding groove 511, and forms an opposite sliding plate groove, second notches 516 are respectively arranged on the middle parts of the two ends of the middle bottom plate of the second baffle sliding groove 512 and the edge of the sixth rectangular plate 52 below the middle bottom plate, the other end of the first round shaft rod 56 is fixed on the sixth rectangular plate 52, a third sliding block 510 is arranged on the bottom surface of the sixth rectangular plate 52, the third sliding block 510 is identical to the second sliding block 59, a threaded pipe 58 is arranged on the right side surface of the seventh rectangular plate 53, and a fifth nut 514 and a sixth nut 515 are sequentially arranged on the right side surface of the threaded pipe 58 from left to right.

The driving device 5 is characterized in that a second sliding block 59 and a third sliding block 510 are sequentially and respectively arranged in a fourth groove 411 and a fifth groove 412 of the radial rotating rod 4, grooves on the second sliding block 59 and the third sliding block 510 are respectively clamped outside inner edges of a second rectangular plate 41 and a third rectangular plate 42, the outer end of the threaded pipe 58 penetrates through a second round hole 414, a fifth nut 514 is arranged on the left side of the fourth rectangular plate 43, a sixth nut 515 is arranged on the right side, and a power line of the stepping motor 54 is connected with a power interface 416.

As shown in fig. 1, 6 and 7, the tangential rack 6 includes an eighth rectangular plate 61, a second rack 62 and a third rack 63, the eighth rectangular plate 61 is a straight hard plate, the right side of the eighth rectangular plate 61 is provided with the second rack 62, a fourth scale 64 and a sixth slot 65 in sequence from top to bottom, the second rack 62 is a straight rack, the sixth slot 65 is a rectangular groove, the left side of the eighth rectangular plate 61 is provided with the third rack 63 and the seventh slot 66 in sequence from top to bottom, and the third rack 63 and the seventh slot 66 are respectively identical to the second rack 62 and the sixth slot 65. The middle part of the upper top surface of the eighth rectangular plate 61 is provided with a first arc groove 67, the middle part of the lower bottom surface of the eighth rectangular plate 61 is provided with a second arc groove 68, the lower end of the eighth rectangular plate 61 is provided with a slide fastener 69, the slide fastener 69 comprises a ninth rectangular plate 611 and a right-angle hanging plate 612, the ninth rectangular plate 611 is provided with the right-angle hanging plate 612, the right-angle hanging plate 612 is vertically combined by two rectangular laths, the two right-angle hanging plates 612 are respectively fixed on the left and right edges of the ninth rectangular plate 611, the slide fastener 69 is formed by respectively placing the upper laths of the two right-angle hanging plates 612 in the sixth groove 65 and the seventh groove 66, the lower bottom surface of the ninth rectangular plate 611 is provided with a second pin 610, the slide fastener 69 can be fixed on the eighth rectangular plate 61 by screwing the second pin 610, and the slide fastener 69 can freely move by loosening the second pin 610.

The tangential rack 6 is formed by sequentially inserting the upper edge and the lower edge into a first baffle sliding groove 511 and a second baffle sliding groove 512 of the driving device 5, the upper ball 513 and the lower ball 513 are respectively arranged in a first arc groove 67 and a second arc groove 68, and the second rack 62 is meshed with the second gear 57.

As shown in fig. 1, 7, and 8, the cutting knife 7 includes an eleventh circular tube 71, a tenth circular disc 72, a circular screw 73, a seventh nut 74, a first clamp 75, a knife handle 76, an adjusting turntable 77, and a triangular blade 78, wherein a thread is provided inside the eleventh circular tube 71, the tenth circular disc 72 is provided at the lower end of the eleventh circular tube 71, the inner circumference of the tenth circular disc 72 is fixed on the eleventh circular tube 71, the circular screw 73 is provided in the eleventh circular tube 71, the seventh nut 74 is provided on the circular screw 73, the adjusting turntable 77 is provided at the lower end of the circular screw 73, the first clamp 75 is provided in the adjusting turntable 77, the first clamp 75 is a rotatable spiral clamp, the knife handle 76 is provided on the first clamp 75, and the triangular blade 78 is provided at the lower end of the knife handle 76.

The cutter 7 fixes the eleventh round pipe 71 under the sliding card 69 of the tangential rack 6. Or the eleventh circular tube 71 is fixed to the first slider 417 of the radial direction rotating bar 4.

As shown in fig. 1, 7 and 9, the painting brush 8 includes a twelfth circular tube 81, an eleventh circular ring plate 82, a second spring 83, a circular brush rod 84, a twelfth circular ring plate 85, a conical pen point 86 and a third pin 87, the third pin 87 is disposed at the lower end of the circumferential surface of the twelfth circular tube 81, the eleventh circular ring plate 82 is disposed at the lower bottom surface of the twelfth circular tube 81, the inner circumference of the eleventh circular ring plate 82 is fixed on the twelfth circular tube 81, the spiral second spring 83 is disposed at the lower bottom surface of the eleventh circular ring plate 82, the twelfth circular ring plate 85 is disposed at the lower end of the second spring 83, the circular brush rod 84 is fixed in an inner circular hole of the twelfth circular ring plate 85, the upper end of the circular brush rod 84 penetrates through the second spring 83 and is inserted into the twelfth circular tube 81, and the conical pen point 86 is disposed at the lower end of the circular brush rod 84.

The brush 8 is formed by fixing the twelfth round tube 81 under the slide 69 of the tangential rack 6 or fixing the twelfth round tube 81 on the first slide 417 of the radial rotating rod 4.

As shown in fig. 1, 2 and 10, the wire winding wheel disc 9 includes a ninth rectangular plate 91, a thirteenth circular tube 92, a thirteenth circular disc 93, a fourteenth circular disc 94, a fourteenth circular tube 95, a fifteenth circular disc 96 and a toothed belt 913, the ninth rectangular plate 91 is a cuboid thick hard plate block, a third circular hole 911 is formed in the ninth rectangular plate 91, the thirteenth circular hole 911 is provided with the thirteenth circular tube 92, a third notch 912 is formed in an upper end of the thirteenth circular tube 92, the third notch 912 is symmetrically arranged, the third notch 912 is identical to the first notch 314, the thirteenth circular tube 92 is sequentially provided with the thirteenth circular disc 93, the ninth rectangular plate 91, the fourteenth circular disc 94, the fourteenth circular tube 95 and the fifteenth circular disc 96 from top to bottom, the thirteenth circular disc 93, the fourteenth circular disc 94, the fourteenth circular tube 95 and the fifteenth circular disc 96, the thirteenth circular disc 93 is above the ninth rectangular plate 91, the fifteenth circular ring plate 96 is arranged at the lower end of the ninth rectangular plate 91, the fourteenth circular tube 95 is clamped between the fourteenth circular ring plate 94 and the fifteenth circular ring plate 96, the fourteenth circular tube 95 is provided with a second pressing strip 910, the second pressing strip 910 is provided with a toothed belt 913, the toothed belt 913 comprises a soft belt 97, a fourth rack 98 and a second adhesion and locking belt 99, the soft belt 97 is a bendable thin rectangular belt capable of being stretched, the soft belt 97 is respectively provided with the fourth rack 98 and the second adhesion and locking belt 99, the straight toothed belt 98 is provided with two middle parts respectively arranged on two sides of the soft belt 97, the second adhesion and locking belt 99 is provided with four straight teeth respectively arranged on two sides of the two straight teeth, and the toothed belt 913 is wound on the circular tube in a tensioning mode to form a straight tooth circular gear with a constant radius.

The wire winding wheel disc 9 is characterized in that the ninth rectangular plate 91 is arranged in the second groove 112 of the bracket 1 for fixing, and the outer end of the soft belt 97 is arranged on the circle forming device 3 and is pressed by the first pressing strip 39.

As shown in fig. 1, 2 and 11, the auxiliary pad 10 is a drawing board for placing paper or a planar platen for placing cut objects, and includes a tenth rectangular plate 101, a second clamp 102 and a third clamp 103, where the tenth rectangular plate 101 is a rigid straight back plate, the surface of the tenth rectangular plate 101 is provided with the second clamp 102, the upper and lower ends of the left and right sides of the tenth rectangular plate 101 are provided with the third clamps 103, and the third clamps 103 are circular clamps.

The auxiliary backing plate 10 is used for fixing the third clamp 103 on the adjusting strut 12 of the bracket 1.

the working principle of the mobile variable parameter involute drawing and cutting multipurpose machine is that a straight line with zero curvature is unfolded according to an arc curve with equal curvature, and a point on an arc is unfolded into a straight line on a tangent line by utilizing a non-sliding rolling principle between a rack and a circular gear. The method is characterized in that: the operation is simple, the construction and the positioning of a base circle can be completed only by shaking the handle under the initial condition, and curve drawing, cutting processing and the like can be completed quickly by turning on a power switch; the functions are complete: the method can complete the construction of base circles with different radiuses, can quickly draw forward and reverse involutes of all points on the circumference, and can continuously complete the drawing of tooth profile patterns, the one-time cutting blanking of the primary gear and the like on a plane plate; the curve drawing accuracy is high, and the involute forming process is real and intuitive; the structure is compact, the cost is low, and the carrying is convenient; the applicability is strong: can be drawn on various occasions and can be cut or processed under any condition. The method is suitable for teaching, carving, engineering design, machining and the like.

The invention relates to a mobile variable parameter involute drawing and cutting multipurpose machine, which has the functions of quickly constructing a disc with any radius and drawing an arc, and comprises the following operation steps:

Firstly, assembling the instrument, 1] placing the frustum pyramid base 16 of the bracket 1 on a fixed point, screwing the first nut 15 to enable the first rectangular plate 11 to be in a stable state, and closing the first switch 115 after being connected with an external power supply. 2] the middle control mechanism 2 is arranged on the bracket 1. 3] loosening the first pin 211 on the central control mechanism 2, detaching the internal inserting rocking tube 310 on the circle constructing device 3, placing the circle constructing device 3 in the central control mechanism 2, screwing the first pin 211 to fix the internal inserting rocking tube 310, and placing the internal inserting rocking tube 310 on the circle constructing device 3 again. 4, the driving device 5 is arranged on the radial rotating rod 4 and is fixed by a fifth nut 514 and a sixth nut 515, and the power line of the stepping motor 54 is connected with the power interface 416. 5 the radial direction rotating rod 4 provided with the driving device 5 is arranged on the combination body of the central control mechanism 2 and the circle forming device 3, the ninth round tube 49 is arranged on the first round disc 19, and the tenth round tube 415 is contacted with the first lead 110. 6] the tangential toothed rack 6 is placed on the drive means 5. 7] the cutter 7 is placed on the tangential rack 5, the round screw 73 is rotated to be inserted into the eleventh round tube 71 and fixed by the seventh nut 74. 8] Place brush 8 on first slide 417 of radial rotating bar 4, release third pin 87, retract barrel 84 into twelfth barrel 81 and secure with third pin 87. 9] placing the toothed belt wheel 9 fully wound with the toothed belt 913 on the bracket 1, 10] placing the auxiliary backing plate 10 on the adjusting strut of the bracket 1, and adjusting the third clamp 103 to make the tenth rectangular plate 101 parallel to the first rectangular plate 11. 11] the sheet on which the coordinate system is drawn is placed on the tenth rectangular plate 101 of the auxiliary mat 10 and fixed by the second jig 102.

setting symbols: 1] the coordinate system of the auxiliary pad plate 10 is set to Oxy, a circle drawn in Oxy with a point O as the center of the circle is a base circle of an involute, and a radius r is recorded as ^ Or. 2] the coordinate system in which the first scale 113 and the second scale 114 are located on the first rectangular plate 11 is represented as O2x2y 2. 3] the circle forming device 3 is located in a coordinate system O1x1y1, and the circle center of the formed disc is O1. The projections of the coordinate systems O2x2y2 and O1x1y1 on the auxiliary pad 10 sheet coincide with Oxy. On the base circle, point a reaches point B counterclockwise, the central angle is θ, the involute from point a to point B is defined as the positive direction and is denoted as LAB, and the involute from point B to point a is defined as the negative direction and is denoted as LBA.

Thirdly, adjusting the initial position: 1] the driving device 5 is moved to the outermost end and fixed by rotating the fifth nut 514 and the sixth nut 515 respectively. 2] rotating the round screw 73 to make the triangular blade 78 of the cutter 7 away from the auxiliary backing plate 10. 3] releasing the third pin 87, pushing the cylinder 84 to make the conical nib 86 far away from the auxiliary pad 10. 4] the inner inserting rocking tube 310 is detached, the fifth ring plate 28 is pushed to make the rubber pad 38 on the circle forming device 3 approach the paper on the auxiliary pad 10, the position of the paper is adjusted to make the center of the rubber pad 38 coincide with the point O, and the penholder 84 is adjusted to make the conical nib 86 contact with the paper and then fixed. 5] stopping pressing the fifth ring disc 28, the rubber pad disc 38 and the conical nib 86 will automatically disengage from the paper.

Fourthly, constructing a dynamic disc: 1] the outer end of the soft belt 97 is placed on the rounding device 3 and is pressed tightly by the first pressing strip 39. 2] inserting the inner inserting rocking tube 310 on the circle forming device 3. 3] the first pin 211 on the middle control mechanism 2 is opened, the first handle 313 is shaken, the toothed belt 913 on the toothed belt wheel disc 9 is tightly wound on the circle forming device 3, the toothed belt 913 forms a circular disc with a radius R1 which is increased continuously, the shaking is stopped when the scale value of R1 on the third scale 418 is equal to R1, and the circle forming device 3 is fixed by rotating the first pin 211. 4] the disk [ ] O1 outermost toothed belt 913 was fixed to obtain a disk [ ] R1 having a radius of R1, which was designated as a toothed pulley [ ] O1R 1.

Fifthly, drawing an arc: 1] sliding the first slide 417 to fix the center of the penholder 84 at the scale value r1 on the third scale 418. 2] inserting the inner inserting rocking tube 310 on the circle forming device 3. 3] press the fifth ring 28 with one hand to bring the rubber pad 38 and the conical nib 86 into contact with the paper, and push the other hand to rotate the outer end of the threaded tube 58 and the conical nib 86 draws a circular arc on the paper. 4] looking at the second scale 114 on the stand 1, when the radial direction rotation lever 4 gets the center line to reach the angle α, the screw tube 58 stops being pushed, the fifth ring disk 28 stops being pressed, and when α ═ 360 °, a base circle of Or1 is drawn. 5, fixing the circle forming device 3 by using the first pin 211 after the middle control mechanism 2 is restored to the original position.

Sixthly, drawing is finished: the second gripper 102 is opened and the sheet is taken out, on which an arc having a radius R1 and a central angle α is drawn. And returning the multi-purpose machine to the initial state.

The invention relates to a mobile variable parameter involute drawing and cutting multipurpose machine, which has the function of rapidly cutting circular arcs and disks, and comprises the following operation steps:

Firstly, assembling an instrument: 1 to-10 is the same as that of a disc with any radius and used for drawing an arc, 11, a plane to be cut is placed on a tenth rectangular plate 101 and fixed by a second clamp 102, and the position of the center O of the circle where the arc is located is drawn.

setting symbols: the same as quickly constructing a disc of any radius and drawing a circular arc.

Thirdly, adjusting the initial position: the same as quickly constructing a disc of any radius and drawing a circular arc.

Fourthly, constructing a dynamic disc: the same as quickly constructing a disc of any radius and drawing a circular arc.

Fifthly, drawing an arc: the same as quickly constructing a disc of any radius and drawing a circular arc.

Sixthly, cutting an arc: 1] respectively unloading the painting brush 8 and the cutter 7. 2] Place brush 8 on tangential rack 6 and adjust conical tip 86 away from auxiliary pad 10. 3] the cutter 7 is arranged on the radial rotating rod 4, and the triangular blade 78 is adjusted to be far away from the auxiliary backing plate 10. And 4, opening the first pin 211, pushing the fifth circular ring disc 28 to enable the rubber pad disc 38 on the circular forming device 3 to approach the auxiliary pad plate 10, adjusting the position of the plate to be cut to enable the center of the rubber pad disc 38 to coincide with the point O, and fixing the triangular blade 78 after being contacted with the circular arc on the plate to be cut. 5, pushing and rotating the outer end of the threaded pipe 58, and cutting the plate to be cut along an arc by the triangular blade 78. 6] observing the second scale 114 on the bracket 1, when the radial rotating rod 4 rotates for one circle, the threaded pipe 58 stops being pushed and the fifth circular disc 28 stops being pressed. 7, fixing the circle forming device 3 by using the first pin 211 after the middle control mechanism 2 is restored to the original position.

Seventhly, finishing cutting: the second clamp 102 is opened and the cut disk is removed to return the multi-purpose machine to the initial state.

The invention relates to a mobile variable parameter involute drawing and cutting multipurpose machine, which has the function of automatically drawing an involute at any point on a circle, and comprises the following operation steps:

Firstly, assembling an instrument: the same as quickly constructing a disc of any radius and drawing a circular arc.

Fifthly, drawing a base circle arc: the same as quickly constructing a disc of any radius and drawing a circular arc.

Sixthly, drawing an involute: 1] points A and B are defined on the base circle [ [ Or ] 1, and a forward involute curve is drawn between point A and point B. And 2, respectively detaching the brush 8 and the cutter 7. 3] the painting brush 8 is placed on the sliding clamp 69, the sliding clamp 69 slides clockwise to one end to be fixed, the tangential rack 6 is pushed to enable one end with the sliding clamp 69 to approach the radial rotating rod 4, the circular pen rod 84 enters the second notch 516 on the driving device 5 to stop, and the conical pen point 86 is adjusted to be far away from the auxiliary backing plate 10. 4] push and turn the outer end of the threaded tube 58 so that the conical nib 86 is on the extension of OA. 5] the conical tip 86 is adjusted to be in a plane with the rubber pad 38. 6] rotating the fifth nut 514 and the sixth nut 515 respectively adjusts the tangential rack 6 to be engaged with the toothed pulley O1r1 on the circular shaping device 3. 7] lightly pushing the fifth ring plate 28 to make the conical nib 86 approach point a on the base circle [ Or ] 1, turning on the positive index in the first switch 115, the tangential rack 6 rolls counterclockwise along the outer pulley of the toothed pulley [ [ O1r 1] as the stepping motor 54 rotates, and the brush 8 draws an involute curve on the paper. 8] when the radial direction rotating rod 4 rotates to the point B, the first switch 115 is closed, and the fifth annular disc 28 stops being pressed.

Seventhly, drawing is finished: the second clamp 102 is opened and the sheet is taken out, on which an involute LAB is drawn with a radius R1 with a central angle θ at point a. And returning the multi-purpose machine to the initial state.

The invention relates to a mobile variable parameter involute drawing and cutting multipurpose machine, which has the function of automatically cutting an involute at any point on a circle, and comprises the following operation steps:

Firstly, assembling an instrument: the method is the same as automatically drawing the involute at any point on the circle.

Setting symbols: the method is the same as automatically drawing the involute at any point on the circle.

Thirdly, adjusting the initial position: the method is the same as automatically drawing the involute at any point on the circle.

Fourthly, constructing a dynamic disc: the method is the same as automatically drawing the involute at any point on the circle.

Fifthly, drawing a base circle arc: the method is the same as automatically drawing the involute at any point on the circle.

Sixthly, drawing an involute: the method is the same as automatically drawing the involute at any point on the circle.

Seventhly, cutting an involute: 1 and 2, the involute is the same as the involute at any point on the automatically drawn circle. 3, the cutter 7 is placed on the sliding clamp 69, the sliding clamp 69 is slid clockwise to one end to be fixed, the tangential rack 6 is pushed to enable one end with the sliding clamp 69 to be close to the radial rotating rod 4, the cutter handle 76 enters the second notch 516 on the driving device 5 to stop, and the triangular blade 78 is adjusted to be far away from the auxiliary backing plate 10. 4] push and turn the outer end of the threaded tube 58 so that the triangular blade 78 is on the extension of the OA. 5] the adjusting triangular blade 78 is in a plane with the rubber dolly 38. 6-8 is the same as the involute at any point on the automatic drawing circle.

Eighthly, finishing cutting: the second clamp 102 is opened, the cut workpiece is removed, and the multi-purpose machine is returned to the initial state.

The invention relates to a mobile variable parameter involute drawing and cutting multipurpose machine, which has the function of automatically drawing gear-shaped patterns on a plane plate, and comprises the following operation steps:

Sixthly, drawing an excircle arc: 1] determining the radius of the outer circle, and sliding the first slide block 417 to ensure that the center of the penholder 84 is positioned at a scale value r2 on the third scale 418 and then fixed. And 2, drawing the circular arc, wherein the operation is the same as the fifth step of quickly constructing a disc with any radius and drawing the circular arc.

Seventhly, drawing a base circle involute: and 1, drawing a forward involute LAB, wherein the step six is the same as the step six of automatically drawing an involute at any point on a circle. 2] draw a negative involute LBA, move the slide card 69 to move the conical nib 86 to point B and fix it, lightly push the fifth circular disk 28, turn on the reverse position in the first switch 115, rotate in the reverse direction with the stepping motor 54, the tangential rack 6 rolls clockwise along the outer pulley of the toothed pulley O1r1, and the brush 8 draws an involute on the paper. When the radial rotating rod 4 rotates to point a, the first switch 115 is turned off, and the fifth circular ring 28 stops being pushed, so that the negative involute LBA is obtained at the base circle point B. The LBA and LBA constitute the edge tooth trace of a tooth. And 3, drawing positive and negative involutes at other points by following 1 and 2.

Eighthly, drawing is finished: the second gripper 102 is opened and the sheet or plate is taken out, on which: the base radius is R1 the outer radius is R2 with an involute running gear-like pattern between the two circles. And returning the multi-purpose machine to the initial state.

The invention relates to a mobile variable parameter involute drawing and cutting multipurpose machine, which has the function of automatically cutting a gear-shaped workpiece on a plane plate, and comprises the following operation steps:

Sixthly, drawing an excircle arc: the same as automatically drawing a gear-shaped pattern on a flat plate.

Seventhly, drawing a base circle involute: the same as automatically drawing a gear-shaped pattern on a flat plate.

Eighthly, cutting the gear-shaped workpiece: and 1, cutting the forward involute LAB, wherein the forward involute LAB is the same as an involute at any point on an automatic cutting circle. 2] cutting a negative involute LBA, moving the slide card 69 to make the triangular blade 78 to point B and fix, lightly pushing the fifth ring disk 28, opening the reverse position in the first switch 115, rotating in the reverse direction with the stepper motor 54, the tangential rack 6 rolling clockwise along the outer layer pulley of the toothed pulley O1r1, and the cutter 7 cutting an involute groove on the flat plate. When the radial rotating rod 4 rotates to point a, the first switch 115 is turned off, and the fifth circular ring 28 stops being pushed, so that the negative involute LBA is obtained at the base circle point B. The LBA and LBA constitute the edge tooth trace of a tooth. And 3, cutting positive and negative involute grooves at other points by following 1 and 2.

Ninthly, cutting a circular arc: cutting the arc between the two teeth of the base circle into grooves by a method of cutting the arc according to the operation steps of quickly cutting the arc and the disc. And 2, cutting the outer circular arc into grooves by a method of cutting the circular arc according to the operation steps of quickly cutting the circular arc and the disc.

Tenth, finishing cutting: the second clamp 102 is opened, and the gear-shaped workpiece is taken out. And returning the multi-purpose machine to the initial state.

The invention relates to a mobile variable parameter involute drawing and cutting multi-purpose machine, which can draw and cut on a fixed plane, and comprises the following operation steps: as long as the spherical surface suction cup 17 on the bracket 1 is adsorbed on the fixed plane, the second nut 18 is screwed to enable the first rectangular plate 11 to be in a stable state, and drawing and cutting can be carried out on the fixed plane by following the method of drawing and cutting on the auxiliary cushion plate 10.

the movable variable parameter involute drawing and cutting multi-purpose machine has economic value and application prospect: along with the technical progress and economic development, advanced equipment is required to improve the teaching effect and the product quality, a mobile variable-parameter involute drawing and cutting multipurpose machine which is simple to operate and convenient to use is urgently needed, only high education nationwide has schools of thousands, and numerous engineering design and gear manufacturing enterprises are needed, so that the quantity is considerable, the market prospect is very wide, and good economic benefit and social benefit are achieved.

The parts not involved in the present invention are the same as or can be implemented using the prior art.

As noted above, while the present invention has been shown and described with reference to certain preferred embodiments, it is not to be construed as limited thereto. Various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. Portable variable parameter involute drawing and cutting multi-purpose machine which characterized in that: including support, well control mechanism, mechanism circle device, radial bull stick, drive arrangement, tangential rack, cutter, painting brush, tooth band rim plate, supplementary backing plate, the lower part of support is arranged in to supplementary backing plate, support upper portion is arranged respectively in to well control mechanism and tooth band rim plate, mechanism circle device 3 arranges in on the well control mechanism, radial bull stick is arranged in on the complex body of well control mechanism and mechanism circle device, drive arrangement and painting brush are arranged in respectively on the radial bull stick, the tangential rack is arranged in on the drive arrangement, the cutter is arranged in on the tangential rack.

2. The mobile variable parameter involute drawing and cutting multi-purpose machine of claim 1, wherein: the winding wheel disc comprises a ninth rectangular plate, a thirteenth circular tube, a thirteenth circular disc, a fourteenth circular tube, a fifteenth circular disc and a toothed belt, wherein a third circular hole is formed in the ninth rectangular plate, the thirteenth circular hole is internally provided with the thirteenth circular tube, a third notch is formed in the upper end of the thirteenth circular tube, the thirteenth circular disc, the ninth rectangular plate, the fourteenth circular disc, the fourteenth circular tube and the fifteenth circular disc are sequentially arranged on the thirteenth circular plate from top to bottom, the fourteenth circular tube is clamped between the fourteenth circular disc and the fifteenth circular disc, a second pressing strip is arranged on the fourteenth circular tube and comprises a soft belt, a fourth rack and a second adhesive locking belt, the soft belt is respectively provided with the fourth rack and the second adhesive locking belt, the straight teeth are respectively arranged in the middle of two sides of the soft belt, the second adhesive locking belt is provided with four straight teeth respectively arranged on two sides of the two straight teeth, the toothed belt is tensioned and wound on the circular pipe to form a straight circular gear with a constant radius.